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Record Information

Version

5.0

Status

Expected but not Quantified

Creation Date

2012-09-11 21:59:08 UTC

Update Date

2023-02-21 17:25:29 UTC

HMDB ID

HMDB0036809

Secondary Accession Numbers

HMDB36809

Metabolite Identification

Common Name

2,6-Diethylpyrazine

Description

2,6-Diethylpyrazine belongs to the class of organic compounds known as pyrazines. Pyrazines are compounds containing a pyrazine ring, which is a six-member aromatic heterocycle, that consists of two nitrogen atoms (at positions 1 and 4) and four carbon atoms. 2,6-Diethylpyrazine has been detected, but not quantified in, a few different foods, such as arabica coffees (Coffea arabica), coffee and coffee products, and robusta coffees (Coffea canephora). This could make 2,6-diethylpyrazine a potential biomarker for the consumption of these foods. Based on a literature review a small amount of articles have been published on 2,6-Diethylpyrazine.

Structure

MOL 3D MOL SDF 3D SDF PDB 3D PDB SMILES InChI

View in JSmol View NMR Assignments View Stereo Labels

Synonyms

Value	Source
2,6-Diethyl-pyrazine	HMDB

Chemical Formula

C₈H₁₂N₂

Average Molecular Weight

136.1943

Monoisotopic Molecular Weight

136.100048394

IUPAC Name

2,6-diethylpyrazine

Traditional Name

2,6-diethylpyrazine

CAS Registry Number

13067-27-1

SMILES

CCC1=CN=CC(CC)=N1

InChI Identifier

InChI=1S/C8H12N2/c1-3-7-5-9-6-8(4-2)10-7/h5-6H,3-4H2,1-2H3

InChI Key

QDWOWLUANUBTGE-UHFFFAOYSA-N

Chemical Taxonomy

Description

Belongs to the class of organic compounds known as pyrazines. Pyrazines are compounds containing a pyrazine ring, which is a six-member aromatic heterocycle, that consists of two nitrogen atoms (at positions 1 and 4) and four carbon atoms.

Kingdom

Organic compounds

Super Class

Organoheterocyclic compounds

Class

Diazines

Sub Class

Pyrazines

Direct Parent

Pyrazines

Alternative Parents

Substituents

Pyrazine
Heteroaromatic compound
Azacycle
Organic nitrogen compound
Organopnictogen compound
Hydrocarbon derivative
Organonitrogen compound
Aromatic heteromonocyclic compound

Molecular Framework

Aromatic heteromonocyclic compounds

External Descriptors

Not Available

Ontology

Physiological effect

Not Available

Disposition

Biological location

Cellular substructure

Extracellular (HMDB: HMDB0036809)
Cytoplasm (HMDB: HMDB0036809)

Route of exposure

Enteral

Ingestion (HMDB: HMDB0036809)

Source

Exogenous

Exogenous (HMDB: HMDB0036809)

Food

Food (HMDB: HMDB0036809)

Coffee and coffee product

Coffee

Arabica coffee (FooDB: FOOD00059)
Robusta coffee (FooDB: FOOD00060)

Coffee and coffee products (FooDB: FOOD00861)

Endogenous

Plant

Coffea (HMDB: HMDB0036809)

Process

Not Available

Role

Biological role

Nutrient (HMDB: HMDB0036809)

Physical Properties

State

Not Available

Experimental Molecular Properties

Property	Value	Reference
Melting Point	Not Available	Not Available
Boiling Point	189.00 to 190.00 °C. @ 760.00 mm Hg (est)	The Good Scents Company Information System
Water Solubility	1645 mg/L @ 25 °C (est)	The Good Scents Company Information System
LogP	1.706 (est)	The Good Scents Company Information System

Experimental Chromatographic Properties

Not Available

Predicted Molecular Properties

Property	Value	Source
Water Solubility	34.4 g/L	ALOGPS
logP	1.62	ALOGPS
logP	1.2	ChemAxon
logS	-0.6	ALOGPS
pKa (Strongest Basic)	1.8	ChemAxon
Physiological Charge	0	ChemAxon
Hydrogen Acceptor Count	2	ChemAxon
Hydrogen Donor Count	0	ChemAxon
Polar Surface Area	25.78 Å²	ChemAxon
Rotatable Bond Count	2	ChemAxon
Refractivity	40.18 m³·mol⁻¹	ChemAxon
Polarizability	15.71 Å³	ChemAxon
Number of Rings	1	ChemAxon
Bioavailability	Yes	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	No	ChemAxon
Veber's Rule	Yes	ChemAxon
MDDR-like Rule	No	ChemAxon

Predicted Chromatographic Properties

Predicted Collision Cross Sections

Predictor	Adduct Type	CCS Value (Å²)	Reference
DarkChem	[M+H]+	129.599	31661259
DarkChem	[M-H]-	129.303	31661259
DeepCCS	[M+H]+	132.336	30932474
DeepCCS	[M-H]-	128.642	30932474
DeepCCS	[M-2H]-	165.784	30932474
DeepCCS	[M+Na]+	140.964	30932474
AllCCS	[M+H]+	129.7	32859911
AllCCS	[M+H-H2O]+	125.1	32859911
AllCCS	[M+NH4]+	134.0	32859911
AllCCS	[M+Na]+	135.3	32859911
AllCCS	[M-H]-	131.6	32859911
AllCCS	[M+Na-2H]-	133.4	32859911
AllCCS	[M+HCOO]-	135.6	32859911

Predicted Retention Times

Underivatized

Chromatographic Method	Retention Time	Reference
Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022.	2.54 minutes	32390414
Predicted by Siyang on May 30, 2022	10.6622 minutes	33406817
Predicted by Siyang using ReTip algorithm on June 8, 2022	4.4 minutes	32390414
AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid	37.6 seconds	40023050
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid	1030.1 seconds	40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid	350.6 seconds	40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid	126.0 seconds	40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid	209.3 seconds	40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid	58.4 seconds	40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid	331.6 seconds	40023050
BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid	311.7 seconds	40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)	55.6 seconds	40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid	837.2 seconds	40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid	108.6 seconds	40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid	1072.4 seconds	40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid	217.6 seconds	40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid	211.1 seconds	40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate	371.7 seconds	40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA	333.6 seconds	40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water	41.4 seconds	40023050

Predicted Kovats Retention Indices

Underivatized

Metabolite	SMILES	Kovats RI Value	Column Type	Reference
2,6-Diethylpyrazine	CCC1=CN=CC(CC)=N1	1441.4	Standard polar	33892256
2,6-Diethylpyrazine	CCC1=CN=CC(CC)=N1	1038.8	Standard non polar	33892256
2,6-Diethylpyrazine	CCC1=CN=CC(CC)=N1	1095.2	Semi standard non polar	33892256

Spectra

GC-MS Spectra

Spectrum Type	Description	Splash Key	Deposition Date	Source	View
Predicted GC-MS	Predicted GC-MS Spectrum - 2,6-Diethylpyrazine GC-MS (Non-derivatized) - 70eV, Positive	splash10-000i-5900000000-db95e235ab22719d40a8	2017-09-01	Wishart Lab	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - 2,6-Diethylpyrazine GC-MS (Non-derivatized) - 70eV, Positive	Not Available	2021-10-12	Wishart Lab	View Spectrum

MS/MS Spectra

Spectrum Type	Description	Splash Key	Deposition Date	Source	View
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2,6-Diethylpyrazine 10V, Positive-QTOF	splash10-000i-0900000000-43fff623fde1d5a852ba	2016-08-03	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2,6-Diethylpyrazine 20V, Positive-QTOF	splash10-000i-1900000000-711cadb56e16cd744c06	2016-08-03	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2,6-Diethylpyrazine 40V, Positive-QTOF	splash10-0zfr-9100000000-3ddee4c4cfde7a384832	2016-08-03	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2,6-Diethylpyrazine 10V, Negative-QTOF	splash10-000i-0900000000-d99d110cb32ac1bc16d8	2016-08-03	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2,6-Diethylpyrazine 20V, Negative-QTOF	splash10-000i-0900000000-8cb1a9e79fe8b5e5fc39	2016-08-03	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2,6-Diethylpyrazine 40V, Negative-QTOF	splash10-0pvr-9700000000-af561db8953a80e8b8e7	2016-08-03	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2,6-Diethylpyrazine 10V, Positive-QTOF	splash10-000i-0900000000-ac299646e14f1770c4b5	2021-09-22	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2,6-Diethylpyrazine 20V, Positive-QTOF	splash10-000i-2900000000-229d47d669fd898cbd35	2021-09-22	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2,6-Diethylpyrazine 40V, Positive-QTOF	splash10-05mo-9000000000-fb592d6c210d55a3e67d	2021-09-22	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2,6-Diethylpyrazine 10V, Negative-QTOF	splash10-000i-0900000000-560d709635c029cd0cba	2021-09-22	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2,6-Diethylpyrazine 20V, Negative-QTOF	splash10-000i-2900000000-9c4a5cb258acc40133e8	2021-09-22	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2,6-Diethylpyrazine 40V, Negative-QTOF	splash10-03di-9200000000-84e7256dea296e641154	2021-09-22	Wishart Lab	View Spectrum

NMR Spectra

Spectrum Type	Description	Deposition Date	Source	View
Predicted 1D NMR	¹³C NMR Spectrum (1D, 100 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 100 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 1000 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 1000 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 200 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 200 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 300 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 300 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 400 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 400 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 500 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 500 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 600 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 600 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 700 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 700 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 800 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 800 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 900 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 900 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum

IR Spectra

Spectrum Type	Description	Deposition Date	Source	View
Predicted IR Spectrum	IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+)	2023-02-04	FELIX lab	View Spectrum
Predicted IR Spectrum	IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+)	2023-02-04	FELIX lab	View Spectrum

Biological Properties

Cellular Locations

Cytoplasm
Extracellular

Biospecimen Locations

Not Available

Tissue Locations

Not Available

Pathways

Not Available

Name	SMPDB/PathBank	KEGG

Normal Concentrations

Not Available

Abnormal Concentrations

Not Available

Associated Disorders and Diseases

Disease References

None

Associated OMIM IDs

None

External Links

DrugBank ID

Not Available

Phenol Explorer Compound ID

Not Available

FooDB ID

FDB015755

KNApSAcK ID

C00052610

Chemspider ID

74971

KEGG Compound ID

Not Available

BioCyc ID

Not Available

BiGG ID

Not Available

Wikipedia Link

Not Available

METLIN ID

Not Available

PubChem Compound

83101

PDB ID

Not Available

ChEBI ID

Not Available

Food Biomarker Ontology

Not Available

VMH ID

Not Available

MarkerDB ID

Not Available

Good Scents ID

rw1464601

References

Synthesis Reference

Not Available

Material Safety Data Sheet (MSDS)

Not Available

General References

(). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .

Showing metabocard for 2,6-Diethylpyrazine (HMDB0036809)

MOL for HMDB0036809 (2,6-Diethylpyrazine)

3D MOL for HMDB0036809 (2,6-Diethylpyrazine)

3D SDF for HMDB0036809 (2,6-Diethylpyrazine)

3D-SDF for HMDB0036809 (2,6-Diethylpyrazine)

PDB for HMDB0036809 (2,6-Diethylpyrazine)

3D PDB for HMDB0036809 (2,6-Diethylpyrazine)

SMILES for HMDB0036809 (2,6-Diethylpyrazine)

INCHI for HMDB0036809 (2,6-Diethylpyrazine)

Structure for HMDB0036809 (2,6-Diethylpyrazine)

3D Structure for HMDB0036809 (2,6-Diethylpyrazine)

Predicted Collision Cross Sections

Predicted Retention Times

Underivatized

Predicted Kovats Retention Indices

Underivatized

GC-MS Spectra

MS/MS Spectra

NMR Spectra

IR Spectra